Frederick william witte



UNITED STAfIfIsY Patented February 16, 1964..

'PATENT OFFICE. d

FREDERICK WILLIAM WITTE.l oF 'cHELMsFoRDg ENGLAND. A.

`BALI. JURNALQBEARI'NG.

i' SPECITEICA'JJION forming partpof Letters Patent-No.' 752,498, 'datedFebruary 16, 1904'.

l Application ne@ .Tune 13, isos..t

To cl2/whom t r11/dy con/cerro: Y i `Be it known that I, FREDERICKWILLIAM WITTE, a citizen of the United States of America, residing atChelmsford, in the vcountyof Essex, England, have Invented a certain newand Improved Ball Journal-Bearing, of which l f be handled in` one pieceorl held 'in position' i the followingis a specification.

Thisinvention relates tov ball-bearings of the twofpoint type adaptedfor shafting, axles,

and like parts, the object being to providea journal-bearing o f theclass havingmeans forv taking' the lateral end thrust in bothdirections, of a simple construction. and in which the number of partsis reduced to a minimum.

Referring tothe accompanying drawings,

Figure l is a half-sectional elevation of onev form the invention mayassume, and Fig. 2 is a modification thereof.

In the following description the term cone is used to designate thatportion of the bearing secured to the shaft or axle and carrying racesfor the balls and the term cup to designate that portion carrying theraces, fixed in the casing or hub.

Referring first to Fig. 1, the bearing is composed of a sleeve e,forming the cone of a journal secured to an axle and provided with amore or less central rigid abutment which may be in one part or not,with the sleeve having on each side thereof races c for thethrust-bearing balls d, races e being also provided on the sleeveportion of said cone for f the balls f, forming the journal bearing.Each set consists of a row of thrust-balls Z and a row of journal-ballsf, which bear on a common cup-piece g, held in a suitable casing (whichmay be an axlebox,) the lines of the loadfor each bearing beingsubstantialljT at right angles to each other. For this purpose it ispreferred to form the cup-piece,fas shown, as at a right-angle part(which can be made in one or more pieces) having an elongated plaincylindrical surface running out to the end of the part, forming a racet' for the journal-bearings, the race j for the thrustbearing Aballsbeing formed with a groove corresponding to the groove c on the end facec at right angles to the cylindrical portion t'. In assembling the partsthe cup-piece g is first slipped over the cone as far back as it willgo.

sein No. 161,332.v (no model.)

-'Ihe journaleballs f are thenpput in position.

The cup is then drawn lforward over the balls, (the'cylindrical surfacepermitting this.) and vthe thrust-balls d are then putin positionbetween the abutment bland the face It. This construction enablesvthecombined bearing to when vthe casingor hub'is withdrawn.v

In some cases it is desirable that a shaft 4carried by'abearing such asabove described purpose cup portionsg'to rock by forming them withseatings o r facings Z, which correspond with similar seatings in thecasing It', both of such seating-surfaces being segments of a circle,preferably struck from a center found in the axial line of the shaft,such segmental facings thus forming a rocking seat both for the journaland thrustbearing balls, whereby pressure is enabled to be distributedequally on all the balls and parts both of the thrust and journalbearings. It is convenient in practice to form one of the segmentalseats Z as shown in the locknut m, which retains the parts in thecasing.

It will` be seen that the construction described provides a very simpleform of ballbearing of the two-point type or, in other words, of thetype in which the axes ofl rotation of the balls are parallel to theaxis of the operating part.

What I claim is-Y 1. In a ball-bearing, the combination with a set ofballs for taking the journal-pressure and a further set for taking thethrust., of a cone portion having two separate grooved races, onelocated vertically, and the other at right angles thereto, a cup portionhaving two faces at right angles to each other, one of said faces beinggrooved and the other being a cylindrical surface running out of thepart at one end, and of Such a length that it can be moved rearwardlybefore the thrust-bearing yballs are put in position,v whereby thedimension exposed between the bottom of the groove of the cone and saidcylindrical surface is sufficient to allow of the journal-balls beinginserted, while when the partis moved IOO forwardly the balls areretained, and the thrust-balls can be placed between the grooved race ofthe cup and the corresponding grooved race of the cone.

` 2. In a ball-bearing, the combinationwithl grooved races on each side,one located vertically, and the other at right angles thereto, of cupportions located on each side of said abutment, each cup portion havingtwo faces at right angles to each other, one of said faces beinggrooved, and the other being a cylindrical surface running out of thepart at one end and of such a length that it can be moved rearwardlybefore its coacting thrust-bearing balls are put in position whereby thedimension exposed between the bottom of the groove of the cone and saidcylindrical surface is suicient to allow of the journal-balls beinginserted, while when the part is moved forwardly the balls are retainedand the coacting thrust-balls can be placed between the grooved race ofthe cup and the corresponding grooved race of the abutment.

3. In a ball-bearing, the combination withV a cone portion, having twoseparate races, of a cup portion having two faces at right angles toeach other forming races, and having also a bearing-surface forming asegment of a circle, balls located between the races of the cone and cupportions respectively and a re- -taining-casing having a surface being asegment of a circle and forming a seat for said cup portion.

4. `In a ball-bearing, the combination with a cone portion and a rigidabutment forming part of same, of cup portions located on each side ofsaid abutment each cup portion having two faces at right angles to eachother forming races, and having also bearing-surfaces forming segmentsof a circle, balls located between and bearing on each side of saidabutment and one face of each cup portion respectively, balls locatedalso on each side of said abutment and between andbearing on the coneand the other races ofv the cup re- 'spectively and a retaining-casinghaving surfaces being segments of a circle and forming the seats forsaid cup portions.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

lFREDERICK WILLIAM WITTE.

Witnesses:

A. KMGHT CROAD, ALLEN PARRY JONES.

